365 is the closing track on Charli XCX's 2024 album Brat, produced as a remix-like reprise of the opener 360. Its release helped fuel Brat summer, the lime-green aesthetic and carefree party attitude that spread across TikTok and other social platforms that year. Fans clipped the song's frantic final section for edits and memes celebrating messy confidence. The track remains popular because its loopable beat captures the album's whole concept in seconds: pop music that is high energy, self-aware and built for nights that blur together.